Clustering Embeddings Entity Search Main Blog

Entity Search with graph embeddings – Part 2 – Embeddings and clustering

Let’s continue our journey into this entity search thesis! In Part 1 we have described what entities and entity search are. We have explained how this search is implemented in the state-of-the-art. We have also introduced the new approach of this dissertation specifying also the dataset and the test collection used. Finally we have described…

Apache Lucene Apache Solr Elasticsearch Information Retrieval Main Blog Meetup

London Information Retrieval Meetup October

After the very warm reception of the first and second edition, the third London Information Retrieval Meetup is approaching (21/10/2019) and we are excited to add more details about our speakers and talks!The event is free and you are invited to register : https://www.eventbrite.com/e/london-information-retrieval-meetup-october-tickets-74403100677 Our second speaker is Andrea Gazzarini, our founder and software engineer:…

Apache Lucene Apache Solr Block Join Main Blog nested documents SolrJ

Apache Solr ChildDocTransformerFactory: How to Build Complex ChildFilter Queries

When using nested documents and the Apache Solr Block Join functionality it is a common requirement to query for an entity (for example the parent entity) and then retrieve for each search result all(or some of) the related children. Let’s see the most important aspects of such functionality and how to apply complex queries when…

Apache Lucene Apache Solr Elasticsearch Information Retrieval Main Blog Meetup

London Information Retrieval Meetup June

After the very warm reception of the first edition, the second London Information Retrieval Meetup is approaching (25/06/2019) and we are excited to add more details about our speakers and talks!The event is free and you are invited to register : https://www.eventbrite.com/e/london-information-retrieval-meetup-june-tickets-62261343354 Our first speaker is René Kriegler, freelance search consultant and search engineer : René Kriegler René…

Apache Lucene Apache Solr Elasticsearch Enterprise Search Learning To Rank Main Blog Search

Haystack 2019 Experience

This blog is a quick summary of my (subjective) experience at Haystack 2019 : the Search Relevance Conference, hosted in Charlottesville (Virginia, USA) from 24/04/2019 to 25/04/2019.References to the slides will be updated as soon as they become available. First of all my feedback on the Haystack Conference is extremely positive.From my perspective the conference…

Apache Lucene Apache Solr Learning To Rank Main Blog

London Information Retrieval Meetup

The London Information Retrieval Meetup is approaching (19/02/2019) and we are excited to add more details about the speakers and talks!The event is free and you are invited to register :https://www.eventbrite.com/e/information-retrieval-meetup-tickets-54542417840 After Sambhav Kothari, software engineer at Bloomberg and Elia Porciani, R&D software engineer at Sease, our last speaker is Andrea Gazzarini, founder and software engineer at…

Apache Lucene Apache Solr Elasticsearch Enterprise Search Information Retrieval Main Blog Search

Rated Ranking Evaluator: Help the poor (Search Engineer)

A Software Engineer is always required to give his customers a concrete evidence about deliverables quality. A Search Engineer deals with a specialisation of such generic Software Quality, which is called Search Quality. What is Search Quality? And why is it so important in a search infrastructure? After all, the “Software Quality” should be omni-comprensive,…

Apache Lucene Apache Solr Autocomplete Autosuggestion Main Blog

Apache Lucene BlendedInfixSuggester : How It Works, Bugs And Improvements

The Apache Lucene/Solr suggesters are important to Sease : we explored the topic in the past[1] and we strongly believe the autocomplete feature to be vital for a lot of search applications. This blog post explores in details the current status of the Lucene BlendedInfixSuggester, some bugs of the most recent version ( with the…